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Alexandra [31]
3 years ago
8

Carlos operates a helicopter. Carlos decides to measure the rotational velocity of the helicopter blades. What would be an appro

priate unit for Carlos's purpose? ​
a) ​meters/second
b) degrees/square second
c) degrees/second
d) meters/square second
​​
Mathematics
1 answer:
aliina [53]3 years ago
5 0

Answer:

The correct option is C.  

Step-by-step explanation:

Given that Carlos operates a helicopter. Carlos decides to measure the rotational velocity of the helicopter blades. we have to find the appropriate unit for Carlos's purpose.

The angular velocity ω is the rate of change of angle with respect to time,

The formula to find the rotational velocity is

\text{Rotational velocity}=\frac{d\phi}{dt}

Angle measure in radians or degrees and time in second.

Hence, the appropriate unit for Carlos's purpose is degrees per second.

The correct option is C.

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36x – 8y2 when x = 3 and y = –6
sergiy2304 [10]

Welcome to Brainly! :)

I cannot understand your equation, therefore I have put it as 36x + 8y + 2. If I'm wrong let me know and I'll fix everything. :)

We need to plug in our values for what we are given.

Let us learn about plugging in.

Let's start with an example equation:

1x + 3y + 1 - Values: y = 2, x = 4 This is a simple equation.

- When it tells you to plug in or tell you the values, that's your ket to plug in the variable for what it tells you.

Now, let's solve this example, our equation is:

1(4) + 3(2) + 1

Now, we have the original equation but plugged in. Next we simplify:

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Add it up and get 11.

Great! Now that we are done with notes, we can solve.

36x – 8y + 2

It tells us that x = 3 an y = 6. Like the equation, we need to plug it in.

36(3) - 8(-6)+2

Great, now we need to simplify.

36(3)-3(-6)+2 \\ 108 + 18+2\\

Cool, now we simplify and get 128!

Great job!

I hope you had amazing experience with brainly! :D

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